# Subtract
**URL:** https://discourse.shapr3d.com/t/subtract/9131
**Category:** Modeling Questions
**Created:** [September 23, 2020, 11:29am UTC](https://discourse.shapr3d.com/t/subtract/9131 "2020-09-23T11:29:21Z")
**Posts on this page:** 5
**Page:** 1
### Author:  [@MichaelaG](https://discourse.shapr3d.com/u/MichaelaG)
#### Post date: [September 23, 2020, 11:29am UTC](https://discourse.shapr3d.com/t/subtract/9131/1 "2020-09-23T11:29:21Z")
I have so many problems to subtract a zylinder from another body with multiple parts.
Before upate it was easyer.
Na chance for me to set it with + or - . There nothing change.
Best regards Michaela
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### Author:  [@Gelphyn](https://discourse.shapr3d.com/u/Gelphyn)
#### Post date: [September 23, 2020, 12:18pm UTC](https://discourse.shapr3d.com/t/subtract/9131/2 "2020-09-23T12:18:51Z")
@MichaelaG
I am unsure if my interpretation of your problem is correct.
However this shows a Cylinder being Subtracted from 2 Bodies.
Notice:
1. The option to Keep Originals - Removed Bodies
2. That it is necessary to Tap the **Second** Body twice to obtain the required ➕ Icon
[https://us1.discourse-cdn.com/flex002/uploads/shapr3d/original/2X/7/7ba37b872e95bea20ebc62783630435cd7090884.mp4](https://us1.discourse-cdn.com/flex002/uploads/shapr3d/original/2X/7/7ba37b872e95bea20ebc62783630435cd7090884.mp4)
If this is not helpful just shout
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### Author:  [@Victor\_Shapr3D](https://discourse.shapr3d.com/u/Victor_Shapr3D)
#### Post date: [September 23, 2020, 1:31pm UTC](https://discourse.shapr3d.com/t/subtract/9131/3 "2020-09-23T13:31:18Z")
Hi Michaela, do you get an invalid body error message when trying to assign + or - to the bodies or you do not get to see the **Done** check marK?
If could please attach a short video showing the video that would be really helpful.
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### Author:  [@Terreos](https://discourse.shapr3d.com/u/Terreos)
#### Post date: [September 23, 2020, 1:31pm UTC](https://discourse.shapr3d.com/t/subtract/9131/4 "2020-09-23T13:31:26Z")
Ah. I believe this should work out nicely. Thanks.
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### Author:  [@MichaelaG](https://discourse.shapr3d.com/u/MichaelaG)
#### Post date: [September 24, 2020, 5:25pm UTC](https://discourse.shapr3d.com/t/subtract/9131/5 "2020-09-24T17:25:35Z")
Could it be that i do more trouble inside my sketch while i use the substract, then i can safe the old Sketch/ file, and but a merge all critical parts and now my Shapre say no Export possible
